An impure sample of calcium carbonate with a mass of 7.95 g was reacted with 50.00 cm3 of 1.00 mol dm hydrochloric acid (an excess). The resulling solution was transferred to a volumetric flask and titrated with 11.10cm3 of 0.300 mol dm-3 sodium hydroxide solution. Determine the percentage purity by mass of the calcium carbonate sample. CaCO3 + HCl -> CaCl2 + H2O + CO2 HCl + NaOH -> NaCl +H2O a. Determine how many moles of hydrochloric acid were used. b. Determine how many moles of excess HCI was titrated c. Determine how much in moles calcium carbonate present in the sample. d. Calculate the mass of calcium carbonate present e. Determine the percentwge calcium carbonate is in the sample.
An impure sample of calcium carbonate with a mass of 7.95 g was reacted with 50.00 cm3 of 1.00 mol dm hydrochloric acid (an excess). The resulling solution was transferred to a volumetric flask and titrated with 11.10cm3 of 0.300 mol dm-3 sodium hydroxide solution. Determine the percentage purity by mass of the calcium carbonate sample. CaCO3 + HCl -> CaCl2 + H2O + CO2 HCl + NaOH -> NaCl +H2O a. Determine how many moles of hydrochloric acid were used. b. Determine how many moles of excess HCI was titrated c. Determine how much in moles calcium carbonate present in the sample. d. Calculate the mass of calcium carbonate present e. Determine the percentwge calcium carbonate is in the sample.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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An impure sample of calcium carbonate with a mass of 7.95 g was reacted with 50.00 cm3 of 1.00 mol dm hydrochloric acid (an excess). The resulling solution was transferred to a volumetric flask and titrated with 11.10cm3 of 0.300 mol dm-3 sodium hydroxide solution. Determine the percentage purity by mass of the calcium carbonate sample.
CaCO3 + HCl -> CaCl2 + H2O + CO2
HCl + NaOH -> NaCl +H2O
a. Determine how many moles of hydrochloric acid were used.
b. Determine how many moles of excess HCI was titrated
c. Determine how much in moles calcium carbonate present in the sample.
d. Calculate the mass of calcium carbonate present
e. Determine the percentwge calcium carbonate is in the sample.
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